Waterproof composition



80 equal mixture ofgum-ara win-rm c; rnvrmnnne, or rassnrc, NEW JERSEY.

PATENT on wa'mnraoor cozi rrosrrron.

1,390,424. No Drawing.

new and useful Improvements in a ,Water-' proof Composition, of which the following v is a specification. I

The object of my invention is the production of a waterproofing, stiffening, ori'reinforcing composition for impregnating textile material. When applied to such material, thetextile becomes. waterproof, an when dry will retain any shape or form into which it might be forced. I

The textile material thus impregnated and made absolutely waterproof will resist any influence of moisture, thereby preventing the form imparted to that textile material be-- ing altered by exposure to rain, dampness, etc.

rubber, glue, starch, gum-arabic, rosin, and water in certain roportions. In preparing the composition, prefer to use the ingredients in about the following portions 20% of rubber in liquid form in a solvent; 10% of gluein li uid form'; 20% to of starch in pow ered form' 5% .to 10% of an ic and-rosin, pow dered; and about40% of water. This mixture is boiled until it becomes a gelatinous paste, whereafter it is filtered so as to form a homogeneous smooth'mass. 85- It is used in its paste-iike 'form and ap-f plied'after havin been heated, to flexible textile material w ichis to be impregnated thereby, prior to receiving various desired shapes impre'ssedinto this material. c, 40 During the impression operation,

gtile material orthe matrices in which the textile material-is formed, is subile'cted to .heat which quickly evaporates all t e liquid,

d 427 588, filed December-1st, 1920.

My composltion consists of a mixture of 'sition, beit understood that any other proposition the tex- Specification of Letters Patent. Patented Sept. 13, 1921. Application filedfiecembcr 1,1920. Serial No. 427,587. x i i ingredients of my mixture. Through the influence of heat, the composition becomes a solid residue which causes the textile material to retain the impressed shape while it simultaneously makes it impervious to warteror moisture.

My'composition may be used for various similar purposes; but its application is particularly advantageous in producing "embossed embroidered ornaments, the subject matter of which is specified and claimed by me in a separate application. Serial No.

My composition is inexpensive, very efli- 'cient' for the peculiar use for which? it is compounded and possesses all' the proper ties required to make a textile material Waterproof. and retain its forminto which the textile is forced. WhilefI have mentioned certain proportions which I prefer in making my compo- B6 portionsof the ingredients might' be' compounded for various purposes to which my mixture can be used.

I claim; i

1. A composition for water roofing and stifi'ening textile material-whic comprises a combination of rubber, glue, starch, gumarabic, and rosin, in about the proportions herein specified. V A

2. A composition of rubber, glue, starch, gum-arabic rosin, and water substantially as described. 3. A partiallyivaporative gelatinous comof rub r, glue, starch, gum-arabic,

rosin and water for the purpose herein specified mixed in the respective proportions of 5.% %,a

Signed at New York in the'countyf 0f I New York and State of New.-York-this 24th day'of-November A.-D. 1920. i 1 WILLIAM C. BEYENBERG. 

